All,
I have a question. I'm new to Novaexchange and last night I sold my 1300 cryptonite coins. The sell price I put in was 0.00002 BTC - but then something strange happened. It sold the first 40 cryptonite coins at a price of 0.00002BTC, the next 500 cryptonite coins at a lower price of 0.000018 BTC and the remainder for even lower than 0.000018 BTC - why does this happen ? Surely, if there is ONE sell price that has been stated explicitly then why should different amounts be sold at different prices ?
I understand that buyers have put in buy orders - but it shouldn't matter because I the seller explicity stated the one price of 0.00002BTC - why should it make decisions to sell my coins at different prices ?

Could someone please explain how the sell system at Novaexchange works, to avoid further embarrassment in the future.
Many thanks in advance.